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प्रश्न
A dilute acid B does not normally give hydrogen when reacted with metals but does give a gas when it reacts with copper. Identify B. Write the equation with copper.
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उत्तर
The dilute acid is nitric acid (HNO3).
Reaction:
\[\ce{\underset{Copper}{3Cu} + \underset{acid}{\underset{Dil. nitric}{8HNO3}} -> \underset{Copper nitrate}{3Cu(NO3)2} + \underset{monoxide}{\underset{Nitrogen}{2NO}} + 4H2O}\]
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संबंधित प्रश्न
Name the products formed when carbon and conc. nitric acid is heated.
How can 68% nitric acid be concentrated to 98% nitric acid?
Brown ring disappear if the test tube is disturbed.
Give reason for the following:
In laboratory preparation of nitric acid all the apparatus including cork should be made up of glass.
What happens when (Given balanced equation):
Nitric acid is added to Kl (aq)?
Complete and balance the following equation :
Pt + HNO3 + HCl → ___________
Choose the correct answer from the option given below :
Nitric acid on standing develops brownish colour which may be attributed to the presence of :
Complete and balance the following equation:
Cu + HNO3 → NO2 + ________+ _________
What is the special feature of the apparatus that is used in the laboratory preparation of nitric acid?
Explain why only all-glass apparatus should be used for the preparation of nitric acid by heating concentrated sulphuric acid and potassium nitrate.
